Do good for the

Join 2 million people taking small steps for big impact.

Informed by experts, trusted by millions.

World-class experts

+60

Registered nonprofit

See our latest impact report

Our impact adds up, one at a time.

3,837,638

Actions taken

343,865 km²

Ocean protected

$2.1M

Raised for projects

56

Species protected

4,379,365

Trees planted

154,460

Corals planted

Signatures delivered

Plastics petition delivered with over 100,000 signatures

Positive Progress

New Zealand officially calls for moratorium on deep-sea mining

Victory

Costa Rica expands marine protected area to be 27 times larger

Victory

60+ species protected by U.S. ban on deadly driftnets

Milestone achieved

One million mangrove trees restored in Mida Creek, Kenya

Why members from 193 countries love taking action with Only One

Real impact, made easy

Whether you have two minutes or two hours, can join in person or digitally, we connect you with actions that make a difference.

Expert-backed, community-led

Climate and ocean scientists, Indigenous leaders, nonprofit veterans, and many others inform every action our community takes.

100% proven impact

We share live updates on every action you take, from legislation passed to the geolocation of each tree planted.

Stay optimistic!

No more doom scrolling or feeling powerless. Celebrate positive progress and learn how you can help instead.

For everyone who wants to turn climate anxiety into climate action.

“

For anyone looking to take action for our ocean and our climate, Only One gives us incredible tools to make a difference and track our individual impact.

Lauren Russell
Actress, Ocean advocate
Los Angeles, United States

“

Only One extends inspiration into tangible, traceable action for all of us.

Carissa Cabrera
Marine biologist, TikTok creator
Kailua, Hawai'i

“

Intuitive, informative, elegant. Taking action to save our planet is ‘Only One’ click away and I can’t stop smiling!

Ümit Hardal
Explorer, Artist, Activist
Copenhagen, Denmark

“

Only One is awesome. It’s great to have an easy place to go, make change, and learn about what we can all do in our every day lives.

Kelsey Williamson
Photographer
Oahu, Hawai'i
Live

Happening right now, around the globe.

Urge the EU Commission to Ban Destructive Fishing in Protected Waters

Tell World Leaders to Protect 30% of the Ocean by 2030

Demand a Strong Global Plastics Treaty

Protect Antarctica to Secure the Largest Act of Ocean Protection in History

Hold Shell Accountable in Pennsylvania

Protect the Ocean by Supporting the High Seas Treaty

Say No to Deep-Sea Mining

See all actions

10 free trees if you sign up today

Do more, as a monthly member.

Grow your own ocean forests and reefs

Remove plastic from oceans and rivers

Fund effective advocacy campaigns

Plans from $9.00 / month

100% of funds go to projects

Take your first action today

Add your voice to campaigns

Join millions to protect wildlife, stop plastic, fight for environmental justice, and tackle the climate crisis.

Learn how to save the planet

Hear from inspiring activists and expert conservationists on steps we can all take to heal our Earth and oceans.

Fund effective solutions

Restore ocean health by growing your own forests and reefs, removing plastic, and funding advocacy campaigns.

May 8, 2023
Article

We work with over 60 world-class experts and partners.

Informed by a diverse roster of experts across multiple disciplines, our work is always in partnership with other non-profits and often takes place at the crucial eleventh hour — after years, or even decades, of work by others in the sector and beyond. We couldn’t be more grateful for the guidance and leadership of these experts and our partners.

Featured experts

Jennifer Howard

Vice President of Conservation International, Board Member of Only One

A leading international scientist, Jennifer focuses on implementing scalable mechanisms to conserve ocean ecosystems as a means to protect vulnerable coastal communities, combat climate change, and conserve biodiversity.

Angelique Pouponneau

Policy & Strategy Advisor to the Chair of the Alliance of Small Island States

A lawyer and ocean and climate advisor in the Seychelles, Angelique holds an LLM in Environmental Law specializing in the law of the sea and natural resources. She is currently pursuing a PhD in Law and is a policy and strategy advisor on ocean and climate matters to the Chair of the Alliance of Small Island States.

Inka Cresswell

Wildlife Filmmaker, Marine Biologist, Social Influencer

Fighting to change the way we interact with the natural world, Inka’s award-winning work educates and inspires a new generation of conservationists, arming them with the tools they need to spread awareness and drive real impact for the planet.

John Weller

Photographer, Writer, Filmmaker, Senior Fellow of Only One

An acclaimed photographer, filmmaker, and writer, John has worked in defense of the ocean for nearly 20 years. He helped lead the global campaign to secure the world’s largest marine protected area in the Ross Sea, Antarctica.

Kalina Grabb

Sea Grant Knauss Fellow in Marine Policy at the NOAA Ocean Acidification Program, Ph.D. from MIT-WHOI Joint Program

A chemical oceanographer who focuses on coral reef health and immunity, Kalina is passionate about using science to inspire, inform, and impact the conservation of our ocean and coastal communities.

Shawn Heinrichs

Photographer, Conservationist, Co-Founder of Only One

Fueled by his passion for the ocean, Shawn fuses dramatic imagery with intimate and thought-provoking stories to connect the global community to threatened marine species and habitats.

Sian Owen

Director of the Deep Sea Conservation Coalition (DSCC)

Sian has led the global strategy and coalition coordination for the DSCC since 2011. Her role draws on decades of experience building and managing transcontinental, complex multi-disciplinary teams to deliver on global social, economic, and environmental policy goals.

Ted Janulis

Founder & Principal of Investable Oceans

Ted has served in various executive positions, including CEO, at financial institutions involved in capital markets, banking, and asset management over a 30+ year business career. The ocean has been one of Ted’s passions since he was young, including a life-changing year after graduating from college with the Our World-Underwater Scholarship Society.

Featured partners

  • Alfred Wegner Institute

  • Anatarctic and Southern Ocean Coalition

  • Avaaz

  • Becht Foundation

  • Beyond Plastics

  • Bloomberg Philanthrophies

  • Blue Nature Alliance

  • Blue Ventures

  • The Builders Initiative

  • Break Free From Plastic Coalition

  • Center for Biological Diversity

  • CleanHub

  • Common Seas

  • Comms Inc.

  • Conservation International

  • Coral Gardeners

  • Coral Vita

  • CREMA Costa Rica

  • Deep Sea Conservation Coalition

  • Eden Reforestation Projects

  • Environmental Advocates NY

  • Fins Attached

  • Galapagos Conservation Trust

  • Greenpeace

  • High Seas Alliance

  • Humane Society International

  • MAC3 Impact Philanthrophies

  • Malpelo Colombia

  • Marine Conservation Institute

  • Migramar

  • Mission Blue

  • National Ocean Protection Coalition

  • Oceana

  • Ocean Unite

  • Oceans 5

  • Operation Rich Coast

  • Oxygen Project

  • Pacific Remote Islands Coalition

  • PADI

  • The Pew Charitable Trusts

  • Plastics For Change

  • Plastic Solutions Fund

  • Pretoma

  • Rare

  • RISE UP

  • Rob Stewart Sharkwater Foundation

  • Seas at Risk

  • Seaspiracy

  • Shark Conservation Fund

  • Shark Stewards

  • Stand For Trees

  • Stop Finning EU

  • Sungai Watch

  • Surfrider Foundation

  • Sustainable Ocean Alliance

  • The Leatherback Project

  • Unidos Por Los Tiburones

  • United Conservationists

  • Unless

  • Waterbear

  • Wetlands International

  • Whale and Dolphin Conservancy

  • Wildlife Conservation Society

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Save the planet every month with our membership

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100% of funds go to projects